document.write( "Question 945979: Find, to the nearest tenth of a degree, all values of theta that satisfy the equation:
\n" ); document.write( "5 sine squared of theta-9 cosine of theta-3=0 \n" ); document.write( "
Algebra.Com's Answer #577065 by lwsshak3(11628)\"\" \"About 
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Find, to the nearest tenth of a degree, all values of theta that satisfy the equation:
\n" ); document.write( "5 sine squared of theta-9 cosine of theta-3=0
\n" ); document.write( "5sin^2(x)-9cosx-3=0
\n" ); document.write( "5(1-cos^2(x))-9cosx-3=0
\n" ); document.write( "5-5cos^2(x)-9cosx-3=0
\n" ); document.write( "5cos^2(x)+9cosx-2=0
\n" ); document.write( "(5cosx-1)(cosx+2)=0
\n" ); document.write( "..
\n" ); document.write( "cosx=2=0
\n" ); document.write( "cosx=-2
\n" ); document.write( "no solution: (-1 ≤ cosx ≤ 1)
\n" ); document.write( "or
\n" ); document.write( "5cosx-1=0
\n" ); document.write( "cosx=1/5
\n" ); document.write( "x=78.46˚+360˚n, 281.54˚+360˚n, n=any integer \n" ); document.write( "
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